8Q3J | pdb_00008q3j

Crystal structure of mIL-38 in complex with a neutralizing Fab e04 fragment

External Resource: Annotation

Domain Annotation: ECOD Classification
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C	Tropomyosin	e8q3jC01	A: a/b three-layered sandwiches	X: ATP-grasp_6	H: ATP-grasp_6	T: ATP-grasp_6	F: Tropomyosin	ECOD (v294.1)
B	Tropomyosin	e8q3jB01	A: a/b three-layered sandwiches	X: ATP-grasp_6	H: ATP-grasp_6	T: ATP-grasp_6	F: Tropomyosin	ECOD (v294.1)
A	Tropomyosin	e8q3jA01	A: a/b three-layered sandwiches	X: ATP-grasp_6	H: ATP-grasp_6	T: ATP-grasp_6	F: Tropomyosin	ECOD (v294.1)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
C, F	Fab e04, anti-IL-38, neutralizing	VH-CH1	Macaca mulatta (Rhesus monkey), Mus musculus (house mouse)	IGHV3S6401, IGHJ401, IGHG101, IGHG103	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202612-0)
B, E	Fab e04, anti-IL-38, neutralizing	L-KAPPA	Macaca mulatta (Rhesus monkey), Mus musculus (house mouse)	IGKV1-2502, IGKJ101, IGKC*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202612-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C, F	Heavy Chain	IGHV3	-	interleukin-1 family member 10	SAbDab (2026-03-27)
B, E	Light Chain	IGKV1	Kappa	interleukin-1 family member 10	SAbDab (2026-03-27)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, D	PF00340	Interleukin-1 / 18 (IL1)	Interleukin-1 / 18	This family includes interleukin-1 and interleukin-18.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, F	Fab e04 Heavy Chain (e04 HC)	-	-	-
B, E	Fab e04 Light Chain (e04 LC)	-	-	-
A, D	Interleukin-1 family member 10	protein binding binding interleukin-1 receptor binding signaling receptor binding cytokine receptor binding growth factor receptor binding molecular function activator activity molecular function regulator activity cytokine activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	response to stimulus defense response response to stress inflammatory response cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling biological regulation response to cytokine cytokine-mediated signaling pathway cell communication response to peptide response to stimulus defense response response to stress inflammatory response cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling biological regulation response to cytokine cytokine-mediated signaling pathway cell communication response to peptide response to chemical cellular process cellular response to cytokine stimulus signal transduction biological process involved in interspecies interaction between organisms response to lipid response to other organism cellular response to lipopolysaccharide response to oxygen-containing compound response to external stimulus cellular response to molecule of bacterial origin response to lipopolysaccharide cellular response to oxygen-containing compound response to biotic stimulus cellular response to biotic stimulus cellular response to chemical stimulus response to bacterium cellular response to lipid response to external biotic stimulus response to molecule of bacterial origin immune response immune system process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure organelle endoplasmic reticulum-Golgi intermediate compartment cytoplasm intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, D	IPR000975	Interleukin-1 family	Family
A, D	IPR003297	Interleukin-1 receptor antagonist/Interleukin-36	Family
A, D	IPR008996	Cytokine IL1/FGF	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.